Congratulations! What a surprising number of people don't seem to realize is that there are two sides to every file transfer. It's great that you can receive files faster, but if the sender is throttling or unable to send faster, it doesn't do any good.
Speeds above 25Mbps help when you have multiple people or apps downloading at the same time, but aren't going to help any single app. Also, if you are saturating your uplink with torrents or other transfers, that can interfere with acks and other data that manages the download side, which can slow things down there.
The other bottleneck that starts to become a factor is the quality of your router. Some of the cheaper ones don't perform well at higher speeds. You can test this by plugging your computer straight into the cable modem and run a few tests.